Operating instructions
Configuration options
3.12 System configuration in RUN (CiR)
ET 200iSP
Operating Instructions, 01/2010, A5E00247483-04
59
Changing the parameter settings in RUN mode
Note the operator steps used for reassigning paramters in the function manual Modifying the
system during operation via CiR
(http://support.automation.siemens.
com/WW/view/en/14044916
).
Reaction of the I/O to parameter reassignment in RUN
When changing the parameter settings for certain modules (see table), make sure that there
is no diagnostic event pending for this module (for example wire break) prior to changing the
settings otherwise diagnostic events exiting the state may no longer be signaled in some
situations. The effect is that the LEDs on the CPU, IM, or module stay lit even though the
reconfigured module is operating properly. If, this situation nevertheless arises, the module
must be removed and reinserted.
Table 3- 8 Behavior of the inputs/outputs
Electronic module Behavior of the inputs/outputs Points to note when changing
parameter settings
8 DI NAMUR They return the process value
that applied before the
parameters were set. Inputs not
affected return their last valid
value (with value status).
4 DO DC23.1V/20mA
SHUT DOWN "H"/ "L"
4 DO DC17.4V/27mA
SHUT DOWN "H"/ "L"
4 DO DC17.4V/40mA
SHUT DOWN "H"/ "L"
2 DO Relay UC60V/2A
They output the output value
that applied before the
parameters were set.
Unaffected outputs return their
last valid value.
4 AI I 2WIRE HART
4 AI I 4WIRE HART
4 AI RTD
4 AI TC
They return the process value
that applied before the
parameters were set. Inputs not
affected return their last valid
value.
4 AO I HART They output the output value
that applied before the
parameters were set.
Unaffected outputs return their
last valid value.
SF LED is lit.
If a diagnostic event was
reported before you started to
reassign parameters, the SF
LEDs (on the CPU, IM or
module) may be lit even though
the module is operating properly
and the diagnostic event has
been cleared.
Only make new parameters
settings when there is no
diagnostic event pending, or
Remove and insert module.